Lux to Watt Calculator

Calculate Watts





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Formula

The formula to calculate Watts (W) from Lux (lx) is:

\[ P (\text{W}) = \frac{E_v (\text{lx}) \times A (\text{m}^2)}{\eta (\text{lm/W})} \]

Where:

Lux to Watt Definition

Lux (lx) is a unit of illuminance, representing the amount of light that hits a surface. Watt (W) is a unit of power. The conversion from lux to watts depends on the luminous efficacy, which is the number of lumens produced per watt of electrical power consumed, and the area over which the light is spread.

Example Calculation

Let's assume the following values:

Using the formula:

\[ P = \frac{500 \times 10}{80} \]

\[ P = 62.5 \text{ W} \]

The Power (W) is 62.5 W.

Lux to Watts Conversion Table

Lux (lx) Watts (W) Area (m²) Luminous Efficacy (lm/W)
500 62.500 10 80
1000 125.000 10 80
1500 187.500 10 80
2000 250.000 10 80
2500 312.500 10 80
3000 375.000 10 80
3500 437.500 10 80
4000 500.000 10 80
4500 562.500 10 80
5000 625.000 10 80
5500 687.500 10 80
6000 750.000 10 80
6500 812.500 10 80
7000 875.000 10 80
7500 937.500 10 80
8000 1,000.000 10 80
8500 1,062.500 10 80
9000 1,125.000 10 80
9500 1,187.500 10 80
10000 1,250.000 10 80
10500 1,312.500 10 80
11000 1,375.000 10 80
11500 1,437.500 10 80
12000 1,500.000 10 80
12500 1,562.500 10 80
13000 1,625.000 10 80
13500 1,687.500 10 80
14000 1,750.000 10 80
14500 1,812.500 10 80
15000 1,875.000 10 80
15500 1,937.500 10 80
16000 2,000.000 10 80
16500 2,062.500 10 80
17000 2,125.000 10 80
17500 2,187.500 10 80
18000 2,250.000 10 80
18500 2,312.500 10 80
19000 2,375.000 10 80
19500 2,437.500 10 80
20000 2,500.000 10 80
20500 2,562.500 10 80
21000 2,625.000 10 80
21500 2,687.500 10 80
22000 2,750.000 10 80
22500 2,812.500 10 80
23000 2,875.000 10 80
23500 2,937.500 10 80
24000 3,000.000 10 80
24500 3,062.500 10 80
25000 3,125.000 10 80
25500 3,187.500 10 80
26000 3,250.000 10 80
26500 3,312.500 10 80
27000 3,375.000 10 80
27500 3,437.500 10 80
28000 3,500.000 10 80
28500 3,562.500 10 80
29000 3,625.000 10 80
29500 3,687.500 10 80
30000 3,750.000 10 80
30500 3,812.500 10 80
31000 3,875.000 10 80
31500 3,937.500 10 80
32000 4,000.000 10 80
32500 4,062.500 10 80
33000 4,125.000 10 80
33500 4,187.500 10 80
34000 4,250.000 10 80
34500 4,312.500 10 80
35000 4,375.000 10 80
35500 4,437.500 10 80
36000 4,500.000 10 80
36500 4,562.500 10 80
37000 4,625.000 10 80
37500 4,687.500 10 80
38000 4,750.000 10 80
38500 4,812.500 10 80
39000 4,875.000 10 80
39500 4,937.500 10 80
40000 5,000.000 10 80
40500 5,062.500 10 80
41000 5,125.000 10 80
41500 5,187.500 10 80
42000 5,250.000 10 80
42500 5,312.500 10 80
43000 5,375.000 10 80
43500 5,437.500 10 80
44000 5,500.000 10 80
44500 5,562.500 10 80
45000 5,625.000 10 80
45500 5,687.500 10 80
46000 5,750.000 10 80
46500 5,812.500 10 80
47000 5,875.000 10 80
47500 5,937.500 10 80
48000 6,000.000 10 80
48500 6,062.500 10 80
49000 6,125.000 10 80
49500 6,187.500 10 80
50000 6,250.000 10 80